A Server-Side Request Forgery (SSRF) vulnerability in Google Cloud Gemini Enterprise Agent Platform App Builder versions prior to 2026-06-01 on Google Cloud Platform allows an unauthenticated attacker to leak the Compute Engine default service account access token.
This vulnerability was patched on 01 June 2026. Users will need to redeploy their previously deployed apps.
Server-Side Request Forgery The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.